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首页> 外文期刊>Differential and integral equations >A HIERARCHY OF MODELS FOR THE ELECTRICAL CONDUCTION IN BIOLOGICAL TISSUES VIA TWO-SCALE CONVERGENCE: THE NONLINEAR CASE
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A HIERARCHY OF MODELS FOR THE ELECTRICAL CONDUCTION IN BIOLOGICAL TISSUES VIA TWO-SCALE CONVERGENCE: THE NONLINEAR CASE

机译:两层融合的生物组织中电传导模型的层次:非线性情况

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摘要

We study a hierarchy of electrical conduction problems in biological tissues. These problems are set in a finely mixed periodic medium, and the unknown electric potentials solve standard elliptic equations set in different conductive regions (the intracellular and extracellular spaces), separated by an interface (the cell membranes), which exhibits a capacitive and a nonlinear conductive behavior, due to its biochemical structure. Different scalings in the interface condition correspond to different problems in the hierarchy. As the spatial period of the medium goes to zero, the problems approach a homogenization limit depending on the initial scaling. The macroscopic models are obtained by using the technique of two-scale convergence.
机译:我们研究生物组织中的电传导问题的层次结构。这些问题设置在精细混合的周期性介质中,未知电位解决了设置在不同导电区域(细胞内和细胞外空间)中,由界面(细胞膜)隔开的标准椭圆方程组,该界面表现出电容性和非线性导电行为,由于其生化结构。接口条件的不同缩放比例对应于层次结构中的不同问题。随着介质的空间周期变为零,取决于初始缩放比例,问题接近均质化极限。宏观模型是通过使用两尺度收敛技术获得的。

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